672521593 has 2 divisors, whose sum is σ = 672521594. Its totient is φ = 672521592.

The previous prime is 672521579. The next prime is 672521599. The reversal of 672521593 is 395125276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628855929 + 43665664 = 25077^2 + 6608^2 .

It is a cyclic number.

It is not a de Polignac number, because 672521593 - 2⁵ = 672521561 is a prime.

It is not a weakly prime, because it can be changed into another prime (672521599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336260796 + 336260797.

It is an arithmetic number, because the mean of its divisors is an integer number (336260797).

Almost surely, 2^672521593 is an apocalyptic number.

It is an amenable number.

672521593 is a deficient number, since it is larger than the sum of its proper divisors (1).

672521593 is an equidigital number, since it uses as much as digits as its factorization.

672521593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 672521593 is about 25933.0212856119. The cubic root of 672521593 is about 876.1303890654.

The spelling of 672521593 in words is "six hundred seventy-two million, five hundred twenty-one thousand, five hundred ninety-three".